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Add extended statistics on package_derivations

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This helps row count estimates when filtering on system_id and target.
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Christopher Baines 2022-11-12 10:40:43 +00:00
parent 48d8ee885a
commit fb9d99a076
4 changed files with 24 additions and 0 deletions
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sqitch/deploy/package_derivations_extended_statistics.sql Normal file
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-- Deploy guix-data-service:package_derivations_extended_statistics to pg
BEGIN;
CREATE STATISTICS package_derivations_mcv (mcv) ON system_id, target FROM package_derivations;
CREATE STATISTICS package_derivations_ndistinct (ndistinct) ON system_id, target FROM package_derivations;
COMMIT;